A method of wireless communication includes receiving a signal from an base station. The method also includes determining a timing advance loop from a set of timing advance loops, and/or a power control loop from a set of power control loops. The determination is based on the received signal.

Embodiments of this application provide a wireless communications method and device, to perform appropriate power control on an SRS. The method includes: determining a closed-loop power control parameter for a sounding reference signal SRS resource group according to a first uplink signal or a first downlink signal corresponding to the SRS resource group; determining a target transmit power for the SRS resource group according to the closed-loop power control parameter; and sending an SRS to a network device on an SRS resource in the SRS resource group according to the target transmit power.

A method performed by a wireless device (110, 500, 791, 792) for determining whether the wireless device is power limited is disclosed. The method comprises receiving (1301), from a network node (160, 712), a transmit power control (TPC) command for one or more of a plurality of power control loops configured at the wireless device. The method comprises obtaining (1302) an indication of the one or more of the plurality of power control loops to which the received TPC command applies. The method comprises determining (1303), based on the obtained indication, whether one or more conditions related to power control at the wireless device are fulfilled. The method comprises determining (1304) whether the wireless device is power limited based on whether the one or more conditions are fulfilled.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a plurality of transmit power control commands identifying a plurality of transmit power values, wherein the plurality of transmit power control commands relate to a set of out-of-order communications. The UE may determine a transmit power for a communication based at least in part on the plurality of transmit power control commands. The UE may transmit the communication based at least in part on the determining the transmit power. Numerous other aspects are provided.

Methods and devices for allocating power among a plurality of circuits in a communication device, including determining a power budget for allocating to the plurality of circuits from a power supply information; receiving an activity status from a first circuit of the plurality of circuits; determining a first power value based on the activity status; deriving a second power value based on the first power value and the power budget; and allocating power to one or more remaining circuits of the plurality of circuits based on the second power value.

Systems and methods are described for reducing processing time of messages that are repeatedly received, with increasing frequency, by a device (e.g., user equipment, base station etc.). For example, the systems and methods would have a mobile device increase power, possibly to maximum power-out, per policy, if messages beyond the original are received and the time between those messages is decreasing. The decrease in time between messages indicates a more urgent need for the mobile device to power up. The systems and methods can be adapted for different types of messages (e.g., power-up, power-down, resource request, bandwidth request, service type, call type origination, quality-of-service request, application type, etc.). Each message type is associated with a policy (pre-determined or adaptive) that indicates the default behavior when the method detects a decrease in time between messages.

A network device may select a value of a multi-level transmit power control (TPC) command from a plurality of pre-defined values. The network device may transmit on a single channel an allocation of an uplink resource and the multi-level TPC command.

A terminal apparatus communicates with a base station apparatus by using a plurality of cells including at least a primary cell and a secondary cell. The terminal apparatus decodes a PDCCH with downlink control information format in which at least a transmission power control command field is included, transmits a PUCCH on the primary cell, and determines transmission power of the PUCCH on the primary cell based on at least a PUCCH power control adjustment parameter. The PUCCH power control adjustment parameter is calculated by accumulating at least a value indicated by the transmission power control command field, and in a case where the terminal apparatus receives a random access response message for the primary cell, the transmission power control circuitry is configured to and/or programmed to reset the PUCCH power control adjustment parameter.

The disclosure provides a method for reducing radiation and a mobile terminal. The method comprises: detecting whether a current operating mode of the mobile terminal is a voice call mode or a data communication mode; and if the current operating mode of the mobile terminal is the voice call mode, transmitting by an AP side a preset first AT command to a modem to control the modem to restore a maximum transmit power for normal operation; if the current operating mode of the mobile terminal is the data communication mode, transmitting by the AP side a preset second AT command to the modem to control the modem to reduce the maximum transmit power.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a transmit power control (TPC) command in a grant associated with transmitting an uplink communication. A scheduling delay between the grant and the uplink communication may be a flexible scheduling delay. The UE may sample a TPC state in association with determining a transmit power, and may determine the transmit power based at least in part on the TPC state and the TPC command. In some aspects, a UE may detect a power headroom report (PHR) trigger associated with a carrier of a plurality of carriers. The UE may identify a set of carriers that is to be ignored when calculating a power headroom, and may calculate the power headroom based at least in part on ignoring the identified set of carriers. Numerous other aspects are provided.